Fuse



June 16, 1931. WILSQN 1,810,805

FUSE

Filed Feb. 15, 1930 CZ i100)? 1 %\j 4 r I auwneqo.

Patented June 16, 1931 i UNITED STATES PATENT oFFicE CHARLES LLEWELLYN WILSON, F BIRMINGHAM, ALABAMA FUSE Application filed February 15, 1930. Serial No. 428,811.

This invention relates to fuses employed in being disposed under the metal ring 12 which protecting circuits to prevent damage to the is positioned over the upper edge of the inner circuits with which the fuse is associated, section 9, the outer portion of the ring memshould the circuit be shorted. ber being threaded so that the outer shell An important object of the invention is to may be secured in position. 55

provide a fuse of this character including a Positioned on the inner shell is a metallic removable inner shell in which the fuse wire ring member 13 which has an inwardly exis mounted, so that the inner shell may be tended flange 1 so constructed that it will readily removed and replaced when the fuse grip the translucent cover 15. Secured to wire burns out, thereby making it possible to the upper portion of the metallic ring memto repair a fuse and eliminating the necessity ber 13, is a finger piece 16 which may be of replacing the entire fuse. gripped by the operator to place or remove A further object of the invention is to prothe fuse. vide a fuse which may be cheap to manufac- From the foregoing it will be seen that due ture, and one which may be readily and easto this construction, the inner removable -66 ily repaired, by persons unfamiliar with shell may be disconnected from the device mechanics. and replaced should the fuse wire 11 burn With the foregoing and other objects in out, thereby eliminating the necessity of review, which will appear as the description placing the entire fuse plug.

20 proceeds, the invention resides in the combi- I I claim: 0 nation and arrangement of parts and in the In a fuse plug, an outer shell, an inner redetails of construction hereinafter described movable shell, a contact ring positioned and claimed, it being understood that over the upper edge of the inner removable changes in the precise embodiment of the inshell, a fuse wire within the inner removable vention herein disclosed, may be made within shell, one end of the fuse wire being disposed the scope of What is claimed, Without departunder the contact ring, the opposite end of ing from the spirit of the invention. the fuse wire extending to the inner end of Referring to the drawings: the inner removable shell, and a contact Figure l is a Vertical sectional view member carried by the inner removable through a fuse constructed in accordance shell and to which the fuse wire is connected. 80

With the invention. In testimony that I claim theforegoing as Figure 2 is a plan view thereof. my own, I have hereto affixed my signature. Referring to the drawings in detail, the CHARLES LLEIVELLYN WILSON.

fuse comprises an outer shell which includes a metallic body portion 5 and a lower insulating portion 6 constructed of hard rubber or other suitable material.

The reference character 7 designates a brass tip, which is formed with a peripheral groove to receive the fiange 8 of the insulating portion 6. The reference character 9 designates the inner or removable section of the fuse which is supplied with an extension 10 adapted to extend through the opening in the brass tip 7, to contact with a contact member of the socket in which the fuse is positioned. V

The reference character. 11 designates the fuse Wire that has one of its ends soldered to 50 the extension 10, the opposite end thereof 

